The hot water faucet in bathtub is dripping,what materials etc... do I need to fix it? I was told water needed to be turned off in order to fix this problem. I would like to fix this problem myself without having to pay someone to fix it,is it possible for me to fix this situation without having to pay or call a handyman?And can I turn the water off by the hot water heater?Please Help!

You sure can do it yourself... But first: what kind of faucet is it ? Can you post a photo of it ?